Home / 646,982.24-892,839-375,211.28

Finding the Fourth Proportional to 646,982.24, 892,839 and 375,211.28

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Solution

The fourth proportional to 646,982.24, 892,839 and 375,211.28 is: 517,793.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,982.24 : 892,839 = 375,211.28 : x
  2. Step 2: Convert to fraction form
    646,982.24/892,839 = 375,211.28/x
  3. Step 3: Cross multiply
    646,982.24x = 892,839 × 375,211.28
  4. Step 4: Simplify right side
    646,982.24x = 335,003,264,023.92
  5. Step 5: Solve for x
    x = 335,003,264,023.92/646,982.24
  6. Step 6: Final answer
    x = 517,793.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.